Smoke-jack for locomotive-engine houses or the like.



I J. w. ORROCK. SMOKE JACK FOR LOCOMOTIVE ENGINE HOUSES OR THE LIKE.

APPLICATION FILED OCT. :5, 1914.

l 1 50,878. Patented Aug. 24, 1915.

2 SHEETS-SHEET I.

COLUMBIA PLANOGRAPH CO.,WASHINOTON c.

J. W. ORROCK.

SMOKE JACK FOR LOCOMOTIVE ENGINE HOUSES OR THE LIKE.

APPLICATION FILED Oct. 15. 1914.

1,150,878. Patented Aug. 24, 1915.

2 SHEETS-SHEET 2. i

WITncsscs COLUM'BIA FLANDURAPH COJWASIHINGTON, 91c.

JOHN W. 'ORROCK, F MONZEREAL,;: QUEBEC, CANADA.

SMOKE-JACK FOR LOCOMOTIVE-ENGINE HOUSES OR THE LIKE.

Specification of Letters Patent.

Patented Aug. 24:, 1915.

Application filed'october 15, 1914. Serial NO; 866,856.

To all whom it may concern:

Be it known that 1, JOHN WV. Cartoon, of the city of Montreal, district of Montreal,

' in the Province of Quebec, Dominion of Canada, have invented certain new and useful Improvements 1n Smoke-Jacks for Loco I motive-Engine Houses or the like; and I do hereby declare that the following is a full, clear, and exact description of the same.

My invention primarily is to produce a strong solid wooden smoke stack for use in engine houses to conduct away the smoke that issues from the locomotives, that will have no ironwork of any kind exposed to the smoke fumes, and will be self-support-- ing without using rods, bands, bolts, wires and the like, such as are commonly used to support and keep together the present-day types of smoke stacks. This is accomplished by building the walls and other portions of the smoke stack in laminated form by using material that is less in width than in depth and building up layer against layer until completed, the fastenings being driven in sidewise, and as each layer is set up the following piece covers the fastenings of the previous one; by this method of construction the walls are self-supporting and there is no ironwork of any kind exposed to the smoke fumes. This feature is important, as it is well known the smoke from locomotives is charged with sulfuric gases that are very destructive to ironwork. In addition, the character of construction proposed renders a smoke stack built of wood semi-fireproof when set up in the manner described, so that in this respect also it has a great advantage over wood smoke stacks made of dressed and matched boards, or ordinary timber, that are held together and supported by rods, bands, bolts, or the like. The advan tages of this type of smoke stack are simplicity of detail, easy and cheap construction, semi-fireproof qualities, and durability.

My invention, therefore, consists in the laminated form of construction, the method of fastening the layers together whereby the fastenings used are protected from smoke fumes, the semi-fireproof'nature of the structure when built, the arrangement of the top cowl with the cover supported simply by extending the four outer layers of the smoke stack without the use of brackets or other devices, a flared hood at the bot-V tom, the end walls of which, rest and are fumes.

supported on the sloped portion of the-main side walls, which extend below the level of the end walls, this flared hood allows the locomotive some latitude when spotting under the smoke stack, and at the same time prevents lateral spreading of the smoke and For full comprehension; however, of my invention reference must be had to the accompanying drawings forming apart of this specification, in which similar reference characters indicate the same parts, and wherein:

Figure 1 is a section view of an engine house providedwith my invention; Fig. 2 is an enlarged detail side elevation of my im proved smoke jack partly in section; Fig. 3 is an end elevation thereof; and Fig. i is a sectional view taken on line B B Fig. 3.

Figs-5 and 6 are perspective views illustrating respectively the complete jack with a portion of the cowl-broken away and of the upper portion of the jack alone tilted to illustrate traverse horizontal sectional view bands, bolts and the like will not be necessi-' tated the side walls are supported on the roof boards cantalivered over purlins at and located one on each side thereof, and trimmers 8 are located one on each sidethereof and are rigidly secured to said purlins, their ends being tenoned into the purlins 4 and 5. In order to avoid exposure of any ironwork to the fumes of the smoke each layer is nailed sidewise throughout its length to the side of the adjoining layer, the following layer thus covering the nails fastening the preceding layers. The portion of the smoke jack above the roof is of substantially square cross-section throughout its height. Below the roof, however, the side walls are extended both ways in the direction of the track for the purpose of affording greater leeway in the spotting of the locomotive. The inclined end walls are secured to the inclined edges 16 of these side walls. To prevent a draft from causing the smoke to spread laterally through the engine house the side walls of my improved jack are extended 32 thereto and fasten the cowl, which is also downwardly as 25 below the end walls, so

that the stack of the locomotive would enter between these side walls and be to all intents and purposes inclosed by the flared laminated, on the top thereof.

The connection between the jack and roof of the engine house is made more rigid and secure by making the portions 35 of the roof boards contiguous to the'jack constitute one a of the horizontal laminae 'at both front and sides. The joint is completed with fillers 36 and 37. I

c' The laminated construction imparts semifireproof qualities to the jack and to further 7 enhance the security against fire I treat the Y engine-house, of a smoke jack wood with a fire-proofing composition before erection. v a

What I claim is as follows 1. The combination with the roof of an carried by the roof with portions thereof above and below the same, the upper portion and two opposite sides of. the lower portion consisting of vertical laminae, and the other sides or ends of the lower portion consisting of horizontal laminae.

2. The combination withthe roof of an engine-house, of a smoke jack, two of the sides of the body of which consist of horivZontal laminae and a portion of the roof incorporated therein and forming a component part thereof in substitution for one of the laminae of each of the said sides.

3. The combinatlon with the, roof of an engine-house having an opening of a smokevjack comprising a pair of unitary vertical sides extending through the opening and other portions whereof are supported by the unitary sides.

4. The combination with the roofof an engine-house, having an opening, of'a smokejack comprising a pair of unitary perpendicular sides extendlng through the openmg andhaving their lower s1des downwardly expanded, the other sides being secured to nated member,"the laminae of which are of less width than depth, and fastened together with nails completely covered by the laminae. 6. A smoke-jack for an engine-house, the upper end of which is of rectangular cross section,-and consists of vertical laminae, the corner laminae of which are extended upwardly and have a cowl mounted thereon.

7. The combination with the roof of an engine-house comprising spaced purlins, roof boards cantalivered over the purlins, a uni tary smoke-jack ofreetangular cross section located in position partly aboveand partly.

below the roof two of the opposite sidewalls of the jack extending through the opening and being equal in vertical length to and forming component parts of the jack, and

the portions of the other sides above the roof being supported on the roof boards and on the first mentioned side, and the portions of the said. other sides below thereof being supportedupon the expended portions of the said'first mentioned sides and trimmers having their ends tenoned into the purlins and located one on each side of the portion of the smoke jack beneath the roof. v p

In testimony whereof I have signed my name to thisspecification two witnesses.

. I I JOHN W. ()RROCK.

Witnesses:

WILLIAM J. C. HnwnTsoN, GORDON G. GooKn. V

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington,1).0. a

in the presence of 

